HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonium Chloride → Benzenamine, 3-bromo-4-methyl-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | 2-Bromo-4-nitrotoluene | HCID 82189 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Product | Benzenamine, 3-bromo-4-methyl- | HCID 82187 | — |
Reaction Steps
To a suspension of iron (1.5 g, 27.6 mmol) and ammonium chloride (2.46 g, 46 mmol) in water (50 mL) was slowly added a solution of 3-bromo-4-methyl-1-nitrobenzene (1.0 g, 4.6 mmol) in methanol (25 mL). The resulting mixture was refluxed for 2 hours. The solids formed were filtered through celite while the reaction mixture was still hot, the solvent of the clear filtrate was then removed. The crude residue was redissolved in water, extracted with ethyl acetate and dried over anhydrous sodium sulfate. The crude oil was adsorbed on silica gel and purified by flash chromatography on silica gel (hexanes/EtOAc from 95:5 to 50:50). The product, 3-bromo-4-methylaniline, was isolated as pale red oil (462 mg). HPLC Rt 3.425 minutes.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07304071B2 |
| Source dataset | uspto-grants-2007_12 |
| ORD ID | ord-cd23d8cbef744e02b4ad6354a2d7cbae |
| Source note | uspto-grants-2007_12 |